I just tossed some oem NGKs for the first time since... 30k miles, and they seem to be the best plugs I've ran, although they are not a step colder as recommended.
I ordered (from Rock Auto) some NGK spark plugs (#95463) advertised as being "OE Series." This supposedly means they are built to match the OE specifications.
I just replaced the spark plugs on my 2014 Cadillac ELR(essentially a gen 1 volt). My ELR has 81000 miles on it. It still had the factory plugs. One of the plugs was leaking compression as seen in the photo. If you have a first gen volt or an ELR, if the plugs have never been changed, it won't hurt to take a look at them. I replaced them with NGK 94279 spark plugs.
I just fixed a shift issue in my 2011 by changing the spark plugs. The plugs were so worn they were draining the electrical system. Lights brighter and Stereo is louder in left channel now too.
My wife has a 700ckx Heritage 2022 model. She has been riding for over 20 years. Bought this bike because of seat height and price point. Used almost every day for commuting. She just hit 40k's with no issues. We did change the plugs for NGK and swapped out the pipe. Also added a Scott's oiler for the chain. She loves it.
The bosch plugs can be found at autozone or O'Reilly's for about 18 bucks each. Cant recall the exact spec, but vw uses the Bosch plugs stock, so its a direct oe swap.
NGK Iridiums are what I run and never had a problem
I ran Denso iridiums for 100,000 miles on mine, they looked usable when I pulled them. Replaced them with NGK's, no difference in power generated.
Be careful where you buy your plugs. There are counterfeit NGK plugs out there. I found out the hard way. I purchased off of Amazon. Mine melted before I could even get a mile in to my session.
Velas NGK, nunca use Bosch, terá problemas.
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